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| Criterion |  Innovation Lean Startup |  Product Discovery Pretotyping |  UX Research Affinity Diagramming |  Product Discovery Fake Door Test |
|---|---|---|---|---|
Purposedifferent | For uncertain business assumptions, the method forces the idea into contact with real market reactions early. It separates wishful picture, assumption, and observable behavior, so that learning becomes faster than planning. This translates uncertainty into measurable insight. | Pretotyping clarifies whether a customer problem and solution idea create enough real demand. It separates problem, assumption, solution, and evidence, and captures the result as a pretotyping sketch, test setup, and conversion data. | When research notes, feedback, or observations sit unconnected side by side, affinity diagramming sorts the raw material into solid themes. Many individual points turn into patterns that make decisions and opportunities clearer. | When demand is still unclear, it measures interest in a feature before it is built. It separates real behavior from polite agreement and deliberately keeps build effort small. |
Complexitydifferent | Medium | Low | Low | Medium |
Timedifferent | Wochen bis Monate je Lernzyklus | Stunden bis wenige Tage | 45–90 min | 1-5 Tage |
Participantsdifferent | 2-8 | 1-4 | 3-10 | Nutzertraffic |
Formatdifferent | Workshop + async | Workshop + async | Workshop | Async |
Outputdifferent | Hypothesis list, MVPs, Learning reports, Pivot or persevere decision | Pretotyping sketch, Test setup, Conversion data, Go or no-go decision | Theme clusters, Insight statements, Opportunity areas | Click Data, Interest Signal, Learning Decision |
Tagsno overlap | LeanStartupValidationMVP | ValidationDemandMVP | SynthesisQualitativeRoot cause | ValidationExperimentsDemandDiscovery |